1. 25 June 2015 1 EHN1 civil engineering project status (MAY) Summary: Updating of the activities carried out on-site (Done) in MAY List activities on going (Next steps) and scheduled for JUNE Final consideration Extension of Building 887 - 23th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

2. (1) MICRO PILES Vertical & inclined drilling along TT85: (100% completed) EHN1 civil engineering project status (MAY) Crown beam execution: (50% completed). Remains Type 3 to be done Done (1/3): 25 June 2015 2 Extension of Building 887 - 23th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

3. (2) DIAPHRAGM WALLS -73 panels- Execution EAST side: (88% completed) EHN1 civil engineering project status (MAY) Execution SOUTH/WEST side: (0% completed) Done (2/3): 25 June 2015 3 Guide walls allowing DW excavation: (100% completed) Execution NORTH/WEST side: (20% completed) ~46% TOTAL PANELS EAST N/W S/W Extension of Building 887 - 23th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

4. Done (3/3): (3) TECHNICAL GALLERY -70 meters- EHN1 civil engineering project status (MAY) Earthworks: (50% completed). Remains Type 3 to be done Execution TG: (25% completed). Type 2, facing TT85 enlargement Backfilling: (0% completed) 25 June 2015 4 Extension of Building 887 - 23th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

5. Next Steps: Activities scheduled for June (1) MP: Crown beam completion in Type 3 part (2) DW: Advancement on panels execution side S/W+N/W. Excavation up to crown beam level EAST side. Ties test and tensioning (3) TG: Type 3 part. Earthworks and execution of the slab system EHN1 civil engineering project status (MAY) 25 June 2015 5 24/06/2015 Extension of Building 887 - 23th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi

6. Final Consideration: -Approx. 2 weeks of delay for the DWs execution from the latest long-term schedule given -New contractual frozen-long-term schedule will be prepared by Contractor. -Execution of TG-Type 2, in time. Backfilling foreseen during 1 st week of June. -Beam operation in TT85 can restart. RP safety separation (5.5m) respected. -CE Handover unchanged for the moment (Jul-2016) -Next status of the works end-June. EHN1 civil engineering project status (MAY) 25 June 2015 6 Extension of Building 887 - 23th EHN1 Extension Integration Meeting N.Lopez – M.Manfredi